/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:42:22,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:42:22,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:42:22,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:42:22,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:42:22,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:42:22,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:42:22,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:42:22,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:42:22,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:42:22,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:42:22,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:42:22,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:42:22,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:42:22,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:42:22,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:42:22,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:42:22,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:42:22,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:42:22,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:42:22,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:42:22,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:42:22,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:42:22,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:42:22,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:42:22,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:42:22,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:42:22,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:42:22,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:42:22,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:42:22,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:42:22,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:42:22,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:42:22,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:42:22,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:42:22,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:42:22,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:42:22,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:42:22,194 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:42:22,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:42:22,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:42:22,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 06:42:22,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:42:22,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:42:22,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:42:22,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:42:22,265 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:42:22,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:42:22,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:42:22,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:42:22,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:42:22,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:42:22,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:42:22,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:42:22,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:42:22,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:42:22,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:42:22,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:42:22,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:42:22,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:42:22,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:42:22,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:42:22,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:42:22,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:42:22,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:42:22,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:42:22,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:42:22,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:42:22,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:42:22,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:42:22,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:42:22,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:42:22,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:42:22,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:42:22,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:42:22,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:42:22,758 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:42:22,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label03.c [2020-10-29 06:42:22,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebf913332/800d0a4447324eaba93fe22befc82c07/FLAG8ec908eab [2020-10-29 06:42:23,608 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:42:23,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label03.c [2020-10-29 06:42:23,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebf913332/800d0a4447324eaba93fe22befc82c07/FLAG8ec908eab [2020-10-29 06:42:23,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ebf913332/800d0a4447324eaba93fe22befc82c07 [2020-10-29 06:42:23,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:42:23,805 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:42:23,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:42:23,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:42:23,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:42:23,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:42:23" (1/1) ... [2020-10-29 06:42:23,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28989fd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:23, skipping insertion in model container [2020-10-29 06:42:23,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:42:23" (1/1) ... [2020-10-29 06:42:23,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:42:23,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:42:24,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:42:24,603 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:42:24,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:42:24,837 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:42:24,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24 WrapperNode [2020-10-29 06:42:24,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:42:24,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:42:24,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:42:24,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:42:24,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:24,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:24,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:24,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:25,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:25,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:25,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... [2020-10-29 06:42:25,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:42:25,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:42:25,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:42:25,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:42:25,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:42:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:42:25,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:42:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:42:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:42:25,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:42:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:42:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:42:25,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:42:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:42:25,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:42:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:42:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:42:25,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:42:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:42:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:42:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:42:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:42:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:42:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:42:27,290 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:42:27,290 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:42:27,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:42:27 BoogieIcfgContainer [2020-10-29 06:42:27,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:42:27,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:42:27,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:42:27,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:42:27,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:42:23" (1/3) ... [2020-10-29 06:42:27,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12799ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:42:27, skipping insertion in model container [2020-10-29 06:42:27,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:42:24" (2/3) ... [2020-10-29 06:42:27,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12799ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:42:27, skipping insertion in model container [2020-10-29 06:42:27,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:42:27" (3/3) ... [2020-10-29 06:42:27,306 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label03.c [2020-10-29 06:42:27,321 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:42:27,329 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:42:27,343 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:42:27,394 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:42:27,394 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:42:27,394 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:42:27,394 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:42:27,394 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:42:27,394 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:42:27,395 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:42:27,395 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:42:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-29 06:42:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 06:42:27,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:27,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:27,435 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:27,443 INFO L82 PathProgramCache]: Analyzing trace with hash 164451990, now seen corresponding path program 1 times [2020-10-29 06:42:27,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:27,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977479996] [2020-10-29 06:42:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:27,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:28,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:28,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 06:42:28,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-10-29 06:42:28,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:28,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:42:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:42:28,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 06:42:28,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:42:28,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:28,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:28,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:28,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:28,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 06:42:28,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:28,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:28,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:42:28,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:42:28,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977479996] [2020-10-29 06:42:28,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:42:28,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 06:42:28,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810530268] [2020-10-29 06:42:28,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:28,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:28,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:28,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:28,595 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 5 states. [2020-10-29 06:42:33,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:33,274 INFO L93 Difference]: Finished difference Result 1004 states and 1802 transitions. [2020-10-29 06:42:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:42:33,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-29 06:42:33,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:33,303 INFO L225 Difference]: With dead ends: 1004 [2020-10-29 06:42:33,304 INFO L226 Difference]: Without dead ends: 640 [2020-10-29 06:42:33,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-29 06:42:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 622. [2020-10-29 06:42:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-10-29 06:42:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 904 transitions. [2020-10-29 06:42:33,429 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 904 transitions. Word has length 37 [2020-10-29 06:42:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:33,430 INFO L481 AbstractCegarLoop]: Abstraction has 622 states and 904 transitions. [2020-10-29 06:42:33,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:42:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 904 transitions. [2020-10-29 06:42:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 06:42:33,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:33,436 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:33,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:42:33,437 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:33,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:33,438 INFO L82 PathProgramCache]: Analyzing trace with hash 552761815, now seen corresponding path program 1 times [2020-10-29 06:42:33,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:33,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57892159] [2020-10-29 06:42:33,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:33,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:34,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:34,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:34,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 06:42:34,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1445 [2020-10-29 06:42:34,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:34,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:42:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:42:34,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:42:34,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:35,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:35,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 06:42:35,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:42:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:35,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:35,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:35,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:42:35,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-29 06:42:35,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:35,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 06:42:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:42:35,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57892159] [2020-10-29 06:42:35,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:42:35,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:42:35,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918198367] [2020-10-29 06:42:35,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:35,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:35,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:35,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:35,446 INFO L87 Difference]: Start difference. First operand 622 states and 904 transitions. Second operand 7 states. [2020-10-29 06:42:38,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:38,758 INFO L93 Difference]: Finished difference Result 1873 states and 2810 transitions. [2020-10-29 06:42:38,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:42:38,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-29 06:42:38,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:38,771 INFO L225 Difference]: With dead ends: 1873 [2020-10-29 06:42:38,772 INFO L226 Difference]: Without dead ends: 1257 [2020-10-29 06:42:38,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:42:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2020-10-29 06:42:38,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1225. [2020-10-29 06:42:38,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1225 states. [2020-10-29 06:42:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1643 transitions. [2020-10-29 06:42:38,872 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1643 transitions. Word has length 107 [2020-10-29 06:42:38,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:38,873 INFO L481 AbstractCegarLoop]: Abstraction has 1225 states and 1643 transitions. [2020-10-29 06:42:38,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:38,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1643 transitions. [2020-10-29 06:42:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 06:42:38,878 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:38,879 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:38,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:42:38,879 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:38,880 INFO L82 PathProgramCache]: Analyzing trace with hash -987055189, now seen corresponding path program 1 times [2020-10-29 06:42:38,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:38,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050190410] [2020-10-29 06:42:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:39,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:39,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:40,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:40,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 06:42:40,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:42:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1559 [2020-10-29 06:42:40,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:40,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:42:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:42:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:42:40,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:40,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:40,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:40,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:40,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:40,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:40,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 06:42:40,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:40,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:40,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:42:40,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:40,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:40,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:40,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:40,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:42:40,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-29 06:42:40,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:40,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:40,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:40,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:42:40,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:42:40,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050190410] [2020-10-29 06:42:40,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:42:40,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:42:40,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939277666] [2020-10-29 06:42:40,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:40,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:40,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:40,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:40,999 INFO L87 Difference]: Start difference. First operand 1225 states and 1643 transitions. Second operand 7 states. [2020-10-29 06:42:44,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:44,775 INFO L93 Difference]: Finished difference Result 3489 states and 4836 transitions. [2020-10-29 06:42:44,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:42:44,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2020-10-29 06:42:44,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:44,795 INFO L225 Difference]: With dead ends: 3489 [2020-10-29 06:42:44,796 INFO L226 Difference]: Without dead ends: 2270 [2020-10-29 06:42:44,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:42:44,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2020-10-29 06:42:44,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2223. [2020-10-29 06:42:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2223 states. [2020-10-29 06:42:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2862 transitions. [2020-10-29 06:42:44,918 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2862 transitions. Word has length 117 [2020-10-29 06:42:44,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:44,920 INFO L481 AbstractCegarLoop]: Abstraction has 2223 states and 2862 transitions. [2020-10-29 06:42:44,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:44,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2862 transitions. [2020-10-29 06:42:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-29 06:42:44,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:44,934 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:44,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:42:44,934 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:44,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:44,937 INFO L82 PathProgramCache]: Analyzing trace with hash -143308254, now seen corresponding path program 1 times [2020-10-29 06:42:44,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:44,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599857925] [2020-10-29 06:42:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:45,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:45,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:45,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 06:42:45,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:45,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-29 06:42:45,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:45,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 06:42:45,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 06:42:45,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:45,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:45,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:45,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:45,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:45,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:45,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:45,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:42:45,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:45,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 06:42:45,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:45,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:45,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:45,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:42:45,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:42:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:42:45,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599857925] [2020-10-29 06:42:45,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:45,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:42:45,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592789107] [2020-10-29 06:42:45,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:45,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:45,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:45,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:45,896 INFO L87 Difference]: Start difference. First operand 2223 states and 2862 transitions. Second operand 5 states. [2020-10-29 06:42:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:48,688 INFO L93 Difference]: Finished difference Result 5040 states and 6688 transitions. [2020-10-29 06:42:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:42:48,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-29 06:42:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:48,712 INFO L225 Difference]: With dead ends: 5040 [2020-10-29 06:42:48,713 INFO L226 Difference]: Without dead ends: 3011 [2020-10-29 06:42:48,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:42:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2020-10-29 06:42:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2995. [2020-10-29 06:42:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2995 states. [2020-10-29 06:42:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3836 transitions. [2020-10-29 06:42:48,821 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3836 transitions. Word has length 168 [2020-10-29 06:42:48,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:48,822 INFO L481 AbstractCegarLoop]: Abstraction has 2995 states and 3836 transitions. [2020-10-29 06:42:48,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:42:48,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3836 transitions. [2020-10-29 06:42:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-29 06:42:48,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:48,828 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:48,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:42:48,828 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:48,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2140054474, now seen corresponding path program 1 times [2020-10-29 06:42:48,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:48,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22937460] [2020-10-29 06:42:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:48,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:49,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:49,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:51,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:51,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-29 06:42:51,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:42:51,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2690 [2020-10-29 06:42:51,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:51,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:51,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-29 06:42:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:42:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:51,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:51,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:51,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:51,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:51,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 06:42:51,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:51,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:51,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:51,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:51,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:51,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:51,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:51,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:52,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:52,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:42:52,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:52,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 06:42:52,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:52,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:52,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:42:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:52,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:42:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:52,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:52,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:52,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:42:52,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:42:52,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:42:52,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22937460] [2020-10-29 06:42:52,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:52,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:42:52,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689848696] [2020-10-29 06:42:52,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:42:52,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:52,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:42:52,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:42:52,518 INFO L87 Difference]: Start difference. First operand 2995 states and 3836 transitions. Second operand 7 states. [2020-10-29 06:42:55,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:42:55,866 INFO L93 Difference]: Finished difference Result 6236 states and 8101 transitions. [2020-10-29 06:42:55,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:42:55,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-29 06:42:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:42:55,889 INFO L225 Difference]: With dead ends: 6236 [2020-10-29 06:42:55,890 INFO L226 Difference]: Without dead ends: 3435 [2020-10-29 06:42:55,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:42:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2020-10-29 06:42:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3217. [2020-10-29 06:42:55,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3217 states. [2020-10-29 06:42:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3217 states to 3217 states and 4142 transitions. [2020-10-29 06:42:56,003 INFO L78 Accepts]: Start accepts. Automaton has 3217 states and 4142 transitions. Word has length 227 [2020-10-29 06:42:56,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:42:56,004 INFO L481 AbstractCegarLoop]: Abstraction has 3217 states and 4142 transitions. [2020-10-29 06:42:56,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:42:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3217 states and 4142 transitions. [2020-10-29 06:42:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-29 06:42:56,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:42:56,010 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:42:56,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:42:56,011 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:42:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:42:56,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1288035294, now seen corresponding path program 1 times [2020-10-29 06:42:56,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:42:56,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963366802] [2020-10-29 06:42:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:42:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:56,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:56,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:56,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 06:42:56,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:42:56,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-10-29 06:42:56,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:56,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:42:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:42:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 06:42:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:56,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:42:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:56,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:56,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:56,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:42:56,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:56,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:56,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:56,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:42:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:56,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:56,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:56,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:42:56,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:56,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 06:42:56,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:56,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:56,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:42:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:56,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:42:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:42:57,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:42:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:42:57,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:42:57,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:42:57,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 06:42:57,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:42:57,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 06:42:57,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:42:57,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:42:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:42:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:42:57,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 06:42:57,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:42:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-29 06:42:57,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963366802] [2020-10-29 06:42:57,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:42:57,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:42:57,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962285419] [2020-10-29 06:42:57,246 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:42:57,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:42:57,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:42:57,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:42:57,250 INFO L87 Difference]: Start difference. First operand 3217 states and 4142 transitions. Second operand 5 states. [2020-10-29 06:43:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:00,491 INFO L93 Difference]: Finished difference Result 7613 states and 10046 transitions. [2020-10-29 06:43:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:43:00,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-29 06:43:00,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:00,518 INFO L225 Difference]: With dead ends: 7613 [2020-10-29 06:43:00,519 INFO L226 Difference]: Without dead ends: 4402 [2020-10-29 06:43:00,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:43:00,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4402 states. [2020-10-29 06:43:00,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4402 to 4189. [2020-10-29 06:43:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4189 states. [2020-10-29 06:43:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4189 states to 4189 states and 5266 transitions. [2020-10-29 06:43:00,656 INFO L78 Accepts]: Start accepts. Automaton has 4189 states and 5266 transitions. Word has length 237 [2020-10-29 06:43:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:00,657 INFO L481 AbstractCegarLoop]: Abstraction has 4189 states and 5266 transitions. [2020-10-29 06:43:00,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:43:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 4189 states and 5266 transitions. [2020-10-29 06:43:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-29 06:43:00,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:00,662 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:00,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:43:00,663 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:00,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1681714018, now seen corresponding path program 1 times [2020-10-29 06:43:00,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:00,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903763567] [2020-10-29 06:43:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:00,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:02,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:02,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:02,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 06:43:02,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:43:02,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2143 [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:43:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:03,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:03,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:03,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:03,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:03,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:03,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:43:03,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:03,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:03,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:03,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:03,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:03,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:03,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:03,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:03,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:43:03,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:03,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 06:43:03,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:03,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:03,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:03,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 06:43:03,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:03,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:43:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:03,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:03,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:03,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:43:03,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:03,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 06:43:03,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:03,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:03,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:03,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:43:03,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:03,606 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:43:03,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903763567] [2020-10-29 06:43:03,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:03,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:43:03,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50993945] [2020-10-29 06:43:03,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:43:03,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:03,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:43:03,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:43:03,610 INFO L87 Difference]: Start difference. First operand 4189 states and 5266 transitions. Second operand 7 states. [2020-10-29 06:43:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:08,229 INFO L93 Difference]: Finished difference Result 10170 states and 13183 transitions. [2020-10-29 06:43:08,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:43:08,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-29 06:43:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:08,265 INFO L225 Difference]: With dead ends: 10170 [2020-10-29 06:43:08,266 INFO L226 Difference]: Without dead ends: 5987 [2020-10-29 06:43:08,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:43:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2020-10-29 06:43:08,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 5573. [2020-10-29 06:43:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5573 states. [2020-10-29 06:43:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5573 states to 5573 states and 6882 transitions. [2020-10-29 06:43:08,449 INFO L78 Accepts]: Start accepts. Automaton has 5573 states and 6882 transitions. Word has length 237 [2020-10-29 06:43:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:08,449 INFO L481 AbstractCegarLoop]: Abstraction has 5573 states and 6882 transitions. [2020-10-29 06:43:08,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:43:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5573 states and 6882 transitions. [2020-10-29 06:43:08,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-29 06:43:08,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:08,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:08,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:43:08,456 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:08,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1476658187, now seen corresponding path program 1 times [2020-10-29 06:43:08,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:08,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615583045] [2020-10-29 06:43:08,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:08,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:08,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:08,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:10,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:11,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:12,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:13,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:13,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-29 06:43:13,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 06:43:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 06:43:13,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:13,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:43:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:43:13,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 06:43:13,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:13,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:13,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:13,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:13,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:13,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 06:43:13,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:13,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:13,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:43:13,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:13,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:13,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:13,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:14,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:14,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:43:14,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:43:14,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-29 06:43:14,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:14,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:14,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 06:43:14,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:43:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:14,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:14,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:43:14,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:14,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 06:43:14,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:14,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:14,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 06:43:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:14,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 58 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:43:14,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615583045] [2020-10-29 06:43:14,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:14,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:43:14,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867697700] [2020-10-29 06:43:14,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:43:14,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:43:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:43:14,763 INFO L87 Difference]: Start difference. First operand 5573 states and 6882 transitions. Second operand 7 states. [2020-10-29 06:43:18,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:18,321 INFO L93 Difference]: Finished difference Result 13275 states and 16884 transitions. [2020-10-29 06:43:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:43:18,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 248 [2020-10-29 06:43:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:18,365 INFO L225 Difference]: With dead ends: 13275 [2020-10-29 06:43:18,365 INFO L226 Difference]: Without dead ends: 7708 [2020-10-29 06:43:18,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:43:18,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2020-10-29 06:43:18,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7119. [2020-10-29 06:43:18,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7119 states. [2020-10-29 06:43:18,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7119 states to 7119 states and 8673 transitions. [2020-10-29 06:43:18,578 INFO L78 Accepts]: Start accepts. Automaton has 7119 states and 8673 transitions. Word has length 248 [2020-10-29 06:43:18,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:18,579 INFO L481 AbstractCegarLoop]: Abstraction has 7119 states and 8673 transitions. [2020-10-29 06:43:18,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:43:18,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7119 states and 8673 transitions. [2020-10-29 06:43:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-29 06:43:18,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:18,587 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:18,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:43:18,587 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:18,588 INFO L82 PathProgramCache]: Analyzing trace with hash -314796590, now seen corresponding path program 1 times [2020-10-29 06:43:18,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:18,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438254838] [2020-10-29 06:43:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:18,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:19,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:19,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:19,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-29 06:43:19,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:43:19,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 891 [2020-10-29 06:43:19,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:19,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:19,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-29 06:43:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 06:43:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:19,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:19,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:19,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:19,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:19,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:19,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:43:19,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:19,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:19,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:19,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:19,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:19,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:19,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:19,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:43:19,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 06:43:19,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:19,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:43:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:19,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:19,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 06:43:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 06:43:19,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:19,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:19,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 06:43:19,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-29 06:43:20,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438254838] [2020-10-29 06:43:20,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:20,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:43:20,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260107516] [2020-10-29 06:43:20,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:43:20,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:20,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:43:20,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:43:20,119 INFO L87 Difference]: Start difference. First operand 7119 states and 8673 transitions. Second operand 5 states. [2020-10-29 06:43:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:22,630 INFO L93 Difference]: Finished difference Result 8846 states and 10758 transitions. [2020-10-29 06:43:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:43:22,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 264 [2020-10-29 06:43:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:22,660 INFO L225 Difference]: With dead ends: 8846 [2020-10-29 06:43:22,660 INFO L226 Difference]: Without dead ends: 8843 [2020-10-29 06:43:22,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:43:22,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8843 states. [2020-10-29 06:43:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8843 to 8071. [2020-10-29 06:43:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8071 states. [2020-10-29 06:43:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8071 states to 8071 states and 9894 transitions. [2020-10-29 06:43:22,866 INFO L78 Accepts]: Start accepts. Automaton has 8071 states and 9894 transitions. Word has length 264 [2020-10-29 06:43:22,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:22,867 INFO L481 AbstractCegarLoop]: Abstraction has 8071 states and 9894 transitions. [2020-10-29 06:43:22,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:43:22,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8071 states and 9894 transitions. [2020-10-29 06:43:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-29 06:43:22,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:22,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:22,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:43:22,874 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:22,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:22,875 INFO L82 PathProgramCache]: Analyzing trace with hash 147949516, now seen corresponding path program 1 times [2020-10-29 06:43:22,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:22,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1507429941] [2020-10-29 06:43:22,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:22,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:25,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:25,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-29 06:43:25,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:43:25,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2310 [2020-10-29 06:43:25,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:25,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:25,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:25,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-29 06:43:25,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:43:25,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:25,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:25,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:25,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:25,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:25,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:25,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:43:25,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:25,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:25,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:25,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:25,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:25,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:25,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:25,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:43:25,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:25,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 06:43:25,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:25,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:25,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:25,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:43:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:43:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:25,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:25,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:25,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:43:25,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:25,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-29 06:43:25,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:25,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:25,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:43:25,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:43:26,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1507429941] [2020-10-29 06:43:26,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:26,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:43:26,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019785043] [2020-10-29 06:43:26,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:43:26,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:26,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:43:26,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:43:26,054 INFO L87 Difference]: Start difference. First operand 8071 states and 9894 transitions. Second operand 7 states. [2020-10-29 06:43:30,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:30,004 INFO L93 Difference]: Finished difference Result 18375 states and 23659 transitions. [2020-10-29 06:43:30,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:43:30,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2020-10-29 06:43:30,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:30,044 INFO L225 Difference]: With dead ends: 18375 [2020-10-29 06:43:30,044 INFO L226 Difference]: Without dead ends: 10310 [2020-10-29 06:43:30,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:43:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2020-10-29 06:43:30,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 10183. [2020-10-29 06:43:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10183 states. [2020-10-29 06:43:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10183 states to 10183 states and 12467 transitions. [2020-10-29 06:43:30,304 INFO L78 Accepts]: Start accepts. Automaton has 10183 states and 12467 transitions. Word has length 264 [2020-10-29 06:43:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:30,305 INFO L481 AbstractCegarLoop]: Abstraction has 10183 states and 12467 transitions. [2020-10-29 06:43:30,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:43:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 10183 states and 12467 transitions. [2020-10-29 06:43:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-29 06:43:30,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:30,313 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:30,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:43:30,314 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:30,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:30,315 INFO L82 PathProgramCache]: Analyzing trace with hash -669725144, now seen corresponding path program 1 times [2020-10-29 06:43:30,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:30,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183993437] [2020-10-29 06:43:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:30,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:30,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:31,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:31,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 297 [2020-10-29 06:43:31,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:43:31,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650 [2020-10-29 06:43:31,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:31,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:31,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-29 06:43:31,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 06:43:31,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:43:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:31,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:31,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:31,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:43:31,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:31,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:31,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:31,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:31,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:31,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:31,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:43:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:31,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:31,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:31,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:43:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-10-29 06:43:31,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183993437] [2020-10-29 06:43:31,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:31,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:43:31,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86502779] [2020-10-29 06:43:31,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:43:31,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:31,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:43:31,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:43:31,654 INFO L87 Difference]: Start difference. First operand 10183 states and 12467 transitions. Second operand 5 states. [2020-10-29 06:43:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:34,381 INFO L93 Difference]: Finished difference Result 11526 states and 14073 transitions. [2020-10-29 06:43:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:43:34,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2020-10-29 06:43:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:34,433 INFO L225 Difference]: With dead ends: 11526 [2020-10-29 06:43:34,433 INFO L226 Difference]: Without dead ends: 11523 [2020-10-29 06:43:34,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:43:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2020-10-29 06:43:34,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 10749. [2020-10-29 06:43:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10749 states. [2020-10-29 06:43:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10749 states to 10749 states and 13200 transitions. [2020-10-29 06:43:34,783 INFO L78 Accepts]: Start accepts. Automaton has 10749 states and 13200 transitions. Word has length 283 [2020-10-29 06:43:34,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:34,784 INFO L481 AbstractCegarLoop]: Abstraction has 10749 states and 13200 transitions. [2020-10-29 06:43:34,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:43:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 10749 states and 13200 transitions. [2020-10-29 06:43:34,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-10-29 06:43:34,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:34,798 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:34,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:43:34,799 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:34,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:34,799 INFO L82 PathProgramCache]: Analyzing trace with hash -387084012, now seen corresponding path program 1 times [2020-10-29 06:43:34,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:34,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40443020] [2020-10-29 06:43:34,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:35,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:35,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-29 06:43:35,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:43:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-10-29 06:43:35,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:35,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 282 [2020-10-29 06:43:35,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 06:43:35,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:35,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:35,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:35,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:35,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:43:35,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:35,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:35,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:35,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:36,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:36,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:43:36,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:36,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 06:43:36,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:36,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:36,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:36,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:36,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:36,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:43:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:36,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:36,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:36,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:36,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 06:43:36,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 59 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-29 06:43:36,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40443020] [2020-10-29 06:43:36,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:36,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:43:36,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459026383] [2020-10-29 06:43:36,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:43:36,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:36,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:43:36,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:43:36,392 INFO L87 Difference]: Start difference. First operand 10749 states and 13200 transitions. Second operand 5 states. [2020-10-29 06:43:39,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:39,484 INFO L93 Difference]: Finished difference Result 24011 states and 30008 transitions. [2020-10-29 06:43:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:43:39,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-10-29 06:43:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:39,531 INFO L225 Difference]: With dead ends: 24011 [2020-10-29 06:43:39,532 INFO L226 Difference]: Without dead ends: 13268 [2020-10-29 06:43:39,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:43:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13268 states. [2020-10-29 06:43:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13268 to 13243. [2020-10-29 06:43:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13243 states. [2020-10-29 06:43:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13243 states to 13243 states and 16429 transitions. [2020-10-29 06:43:39,859 INFO L78 Accepts]: Start accepts. Automaton has 13243 states and 16429 transitions. Word has length 307 [2020-10-29 06:43:39,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:39,860 INFO L481 AbstractCegarLoop]: Abstraction has 13243 states and 16429 transitions. [2020-10-29 06:43:39,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:43:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 13243 states and 16429 transitions. [2020-10-29 06:43:39,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-10-29 06:43:39,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:39,881 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:39,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:43:39,881 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:39,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2145256835, now seen corresponding path program 1 times [2020-10-29 06:43:39,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:39,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2135599487] [2020-10-29 06:43:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:40,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:40,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:41,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:42,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:45,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:45,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 374 [2020-10-29 06:43:45,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:43:45,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 331 [2020-10-29 06:43:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:45,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:45,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:45,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:45,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:45,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:43:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:45,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:45,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:45,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:43:45,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 06:43:45,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:45,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 06:43:45,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:45,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:43:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:45,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:45,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:45,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 06:43:45,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 06:43:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:45,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:43:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 06:43:45,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:45,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-10-29 06:43:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:45,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:46,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:46,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:46,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:43:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 162 proven. 100 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-29 06:43:46,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2135599487] [2020-10-29 06:43:46,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:46,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 06:43:46,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714141210] [2020-10-29 06:43:46,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 06:43:46,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:46,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 06:43:46,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:43:46,336 INFO L87 Difference]: Start difference. First operand 13243 states and 16429 transitions. Second operand 10 states. [2020-10-29 06:43:46,530 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-29 06:43:47,481 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-10-29 06:43:50,047 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-29 06:43:51,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:43:51,981 INFO L93 Difference]: Finished difference Result 33741 states and 42581 transitions. [2020-10-29 06:43:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 06:43:51,982 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 358 [2020-10-29 06:43:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:43:52,050 INFO L225 Difference]: With dead ends: 33741 [2020-10-29 06:43:52,050 INFO L226 Difference]: Without dead ends: 19918 [2020-10-29 06:43:52,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2020-10-29 06:43:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19918 states. [2020-10-29 06:43:52,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19918 to 19822. [2020-10-29 06:43:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19822 states. [2020-10-29 06:43:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19822 states to 19822 states and 24120 transitions. [2020-10-29 06:43:52,698 INFO L78 Accepts]: Start accepts. Automaton has 19822 states and 24120 transitions. Word has length 358 [2020-10-29 06:43:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:43:52,699 INFO L481 AbstractCegarLoop]: Abstraction has 19822 states and 24120 transitions. [2020-10-29 06:43:52,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 06:43:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 19822 states and 24120 transitions. [2020-10-29 06:43:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-29 06:43:52,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:43:52,720 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:43:52,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:43:52,720 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:43:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:43:52,721 INFO L82 PathProgramCache]: Analyzing trace with hash 96345775, now seen corresponding path program 1 times [2020-10-29 06:43:52,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:43:52,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183500467] [2020-10-29 06:43:52,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:43:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:52,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:52,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:53,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:53,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:56,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:57,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:57,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-29 06:43:57,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 06:43:57,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-29 06:43:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:57,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:43:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:57,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:58,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:58,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:43:58,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 06:43:58,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:58,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:43:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:43:58,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:43:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:58,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:43:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:58,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:58,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-29 06:43:58,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-29 06:43:58,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-29 06:43:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:58,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:58,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:43:58,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:43:58,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:58,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-29 06:43:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:43:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:43:58,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:43:58,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:43:58,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:43:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 06:43:58,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:43:58,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:43:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:43:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 06:43:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:43:58,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:43:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 92 proven. 211 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 06:43:58,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183500467] [2020-10-29 06:43:58,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:43:58,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:43:58,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672978932] [2020-10-29 06:43:58,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:43:58,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:43:58,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:43:58,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:43:58,885 INFO L87 Difference]: Start difference. First operand 19822 states and 24120 transitions. Second operand 8 states. [2020-10-29 06:44:02,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:02,045 INFO L93 Difference]: Finished difference Result 35448 states and 43460 transitions. [2020-10-29 06:44:02,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 06:44:02,046 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 361 [2020-10-29 06:44:02,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:02,107 INFO L225 Difference]: With dead ends: 35448 [2020-10-29 06:44:02,107 INFO L226 Difference]: Without dead ends: 19864 [2020-10-29 06:44:02,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 06:44:02,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19864 states. [2020-10-29 06:44:02,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19864 to 19824. [2020-10-29 06:44:02,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19824 states. [2020-10-29 06:44:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19824 states to 19824 states and 24108 transitions. [2020-10-29 06:44:02,556 INFO L78 Accepts]: Start accepts. Automaton has 19824 states and 24108 transitions. Word has length 361 [2020-10-29 06:44:02,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:02,557 INFO L481 AbstractCegarLoop]: Abstraction has 19824 states and 24108 transitions. [2020-10-29 06:44:02,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:44:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19824 states and 24108 transitions. [2020-10-29 06:44:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-29 06:44:02,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:02,573 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:02,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:44:02,573 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:02,574 INFO L82 PathProgramCache]: Analyzing trace with hash -92768887, now seen corresponding path program 1 times [2020-10-29 06:44:02,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:02,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410474836] [2020-10-29 06:44:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:02,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:02,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:03,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1234 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-29 06:44:03,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:44:03,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:04,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:04,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:04,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:04,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:04,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:04,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:04,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:04,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:04,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:04,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:04,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:44:04,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:04,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 06:44:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:04,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:04,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:04,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:44:04,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 224 proven. 30 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-29 06:44:04,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410474836] [2020-10-29 06:44:04,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:04,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:44:04,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79904798] [2020-10-29 06:44:04,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:44:04,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:04,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:44:04,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:44:04,604 INFO L87 Difference]: Start difference. First operand 19824 states and 24108 transitions. Second operand 6 states. [2020-10-29 06:44:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:07,850 INFO L93 Difference]: Finished difference Result 35528 states and 43976 transitions. [2020-10-29 06:44:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:44:07,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 369 [2020-10-29 06:44:07,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:07,914 INFO L225 Difference]: With dead ends: 35528 [2020-10-29 06:44:07,915 INFO L226 Difference]: Without dead ends: 19952 [2020-10-29 06:44:07,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:44:07,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19952 states. [2020-10-29 06:44:08,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19952 to 19820. [2020-10-29 06:44:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19820 states. [2020-10-29 06:44:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19820 states to 19820 states and 23634 transitions. [2020-10-29 06:44:08,399 INFO L78 Accepts]: Start accepts. Automaton has 19820 states and 23634 transitions. Word has length 369 [2020-10-29 06:44:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:08,400 INFO L481 AbstractCegarLoop]: Abstraction has 19820 states and 23634 transitions. [2020-10-29 06:44:08,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:44:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 19820 states and 23634 transitions. [2020-10-29 06:44:08,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-10-29 06:44:08,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:08,425 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:08,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 06:44:08,425 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:08,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1775243932, now seen corresponding path program 1 times [2020-10-29 06:44:08,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:08,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344660061] [2020-10-29 06:44:08,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:08,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:09,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:10,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-29 06:44:12,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3658 [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:44:12,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 06:44:12,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:12,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:44:12,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:12,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:12,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:12,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:12,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:44:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 06:44:12,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 06:44:12,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:12,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-29 06:44:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 06:44:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:12,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-10-29 06:44:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:12,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:12,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:12,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:44:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:12,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 301 proven. 79 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-29 06:44:13,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344660061] [2020-10-29 06:44:13,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:13,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:44:13,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177295296] [2020-10-29 06:44:13,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:44:13,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:13,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:44:13,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:44:13,010 INFO L87 Difference]: Start difference. First operand 19820 states and 23634 transitions. Second operand 8 states. [2020-10-29 06:44:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:18,430 INFO L93 Difference]: Finished difference Result 42589 states and 51021 transitions. [2020-10-29 06:44:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 06:44:18,431 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 411 [2020-10-29 06:44:18,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:18,474 INFO L225 Difference]: With dead ends: 42589 [2020-10-29 06:44:18,475 INFO L226 Difference]: Without dead ends: 23153 [2020-10-29 06:44:18,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 06:44:18,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23153 states. [2020-10-29 06:44:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23153 to 21163. [2020-10-29 06:44:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21163 states. [2020-10-29 06:44:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21163 states to 21163 states and 24976 transitions. [2020-10-29 06:44:18,976 INFO L78 Accepts]: Start accepts. Automaton has 21163 states and 24976 transitions. Word has length 411 [2020-10-29 06:44:18,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:18,977 INFO L481 AbstractCegarLoop]: Abstraction has 21163 states and 24976 transitions. [2020-10-29 06:44:18,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:44:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 21163 states and 24976 transitions. [2020-10-29 06:44:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-10-29 06:44:19,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:19,002 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:19,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 06:44:19,003 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:19,003 INFO L82 PathProgramCache]: Analyzing trace with hash -97110152, now seen corresponding path program 1 times [2020-10-29 06:44:19,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:19,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [334623743] [2020-10-29 06:44:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:19,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:19,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:21,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:22,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 439 [2020-10-29 06:44:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3714 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 318 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 06:44:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:22,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:22,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:22,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:22,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:22,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:44:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:22,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:23,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:23,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:23,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:44:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:23,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:23,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:23,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:23,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:23,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-29 06:44:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:23,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:23,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:23,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 06:44:23,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:23,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-10-29 06:44:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:23,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:23,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:44:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:44:23,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:44:23,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-29 06:44:23,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [334623743] [2020-10-29 06:44:23,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:23,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:44:23,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084986605] [2020-10-29 06:44:23,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:44:23,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:23,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:44:23,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:44:23,500 INFO L87 Difference]: Start difference. First operand 21163 states and 24976 transitions. Second operand 7 states. [2020-10-29 06:44:27,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:27,987 INFO L93 Difference]: Finished difference Result 41650 states and 49161 transitions. [2020-10-29 06:44:27,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:44:27,988 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 421 [2020-10-29 06:44:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:28,032 INFO L225 Difference]: With dead ends: 41650 [2020-10-29 06:44:28,033 INFO L226 Difference]: Without dead ends: 20681 [2020-10-29 06:44:28,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:44:28,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20681 states. [2020-10-29 06:44:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20681 to 20602. [2020-10-29 06:44:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20602 states. [2020-10-29 06:44:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20602 states to 20602 states and 23627 transitions. [2020-10-29 06:44:28,441 INFO L78 Accepts]: Start accepts. Automaton has 20602 states and 23627 transitions. Word has length 421 [2020-10-29 06:44:28,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:28,442 INFO L481 AbstractCegarLoop]: Abstraction has 20602 states and 23627 transitions. [2020-10-29 06:44:28,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:44:28,442 INFO L276 IsEmpty]: Start isEmpty. Operand 20602 states and 23627 transitions. [2020-10-29 06:44:28,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-29 06:44:28,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:44:28,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:44:28,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 06:44:28,466 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:44:28,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:44:28,467 INFO L82 PathProgramCache]: Analyzing trace with hash -2074583036, now seen corresponding path program 1 times [2020-10-29 06:44:28,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:44:28,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047168952] [2020-10-29 06:44:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:44:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:28,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:28,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:29,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:30,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 439 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 06:44:30,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:30,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:44:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:30,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:30,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:44:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:30,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:30,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:44:30,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:44:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:44:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:30,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:30,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 06:44:30,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-29 06:44:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:30,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-29 06:44:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:44:30,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:44:30,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:44:30,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:44:30,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:44:30,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:44:30,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:44:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 93 proven. 3 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2020-10-29 06:44:30,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047168952] [2020-10-29 06:44:30,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:44:30,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:44:30,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120217429] [2020-10-29 06:44:30,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:44:30,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:44:30,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:44:30,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:44:30,648 INFO L87 Difference]: Start difference. First operand 20602 states and 23627 transitions. Second operand 5 states. [2020-10-29 06:44:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:44:34,185 INFO L93 Difference]: Finished difference Result 42950 states and 49511 transitions. [2020-10-29 06:44:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:44:34,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 423 [2020-10-29 06:44:34,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:44:34,187 INFO L225 Difference]: With dead ends: 42950 [2020-10-29 06:44:34,187 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:44:34,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:44:34,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:44:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:44:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:44:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:44:34,227 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 423 [2020-10-29 06:44:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:44:34,227 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:44:34,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:44:34,228 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:44:34,228 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:44:34,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 06:44:34,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:44:35,009 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2020-10-29 06:44:37,845 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 535 DAG size of output: 348 [2020-10-29 06:44:38,631 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 348 [2020-10-29 06:44:38,884 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 28 [2020-10-29 06:44:40,422 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 265 DAG size of output: 34 [2020-10-29 06:44:43,845 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 495 DAG size of output: 45 [2020-10-29 06:44:45,625 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 306 DAG size of output: 42 [2020-10-29 06:44:47,485 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 306 DAG size of output: 42 [2020-10-29 06:44:47,578 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:44:47,579 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:44:47,579 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:44:47,579 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:44:47,579 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:44:47,579 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a23~0 |old(~a23~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= ~a3~0 |old(~a3~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-29 06:44:47,579 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:44:47,580 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,580 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,580 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,580 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,580 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-29 06:44:47,582 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-29 06:44:47,582 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,582 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,582 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,583 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,584 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,585 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-29 06:44:47,586 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,587 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,588 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,589 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-29 06:44:47,590 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-29 06:44:47,591 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 24 1028) the Hoare annotation is: (let ((.cse0 (and (= ~a25~0 |old(~a25~0)|) (= ~a23~0 |old(~a23~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 |old(~a4~0)|))) (.cse1 (not (<= |old(~a4~0)| 1)))) (and (or (not (<= |old(~a25~0)| 11)) .cse0 .cse1) (or (not (<= 165 |old(~a23~0)|)) .cse0 (not (<= |old(~a29~0)| 130)) .cse1) (or .cse0 (not (<= |old(~a4~0)| 0))) (or .cse0 (not (<= 141 |old(~a29~0)|)) .cse1) (or (not (= 12 |old(~a25~0)|)) .cse0 .cse1) (or (not (<= 180 |old(~a23~0)|)) .cse0 .cse1))) [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,592 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-29 06:44:47,593 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,594 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,595 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,596 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,597 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,598 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-29 06:44:47,599 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,600 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,601 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-29 06:44:47,602 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,603 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L270 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a4~0)| 1)))) (and (or (not (<= 141 |old(~a29~0)|)) .cse0) (or (not (<= 165 |old(~a23~0)|)) (not (<= |old(~a29~0)| 130)) .cse0) (or (not (<= 180 |old(~a23~0)|)) .cse0) (or (not (= 12 |old(~a25~0)|)) .cse0) (or (not (<= |old(~a25~0)| 11)) .cse0) (not (<= |old(~a4~0)| 0)))) [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L98-1(line 98) no Hoare annotation was computed. [2020-10-29 06:44:47,604 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-29 06:44:47,605 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-29 06:44:47,606 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-29 06:44:47,606 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-29 06:44:47,606 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:44:47,606 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~a4~0) (= ~a25~0 10) (<= ~a29~0 130) (<= ~a4~0 1) (= ~a23~0 312)) [2020-10-29 06:44:47,606 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:44:47,606 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:44:47,606 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 1030 1046) the Hoare annotation is: (or (not (= 312 |old(~a23~0)|)) (not (= 10 |old(~a25~0)|)) (and (= ~a25~0 |old(~a25~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a23~0 312)) (not (<= |old(~a29~0)| 130)) (not (<= |old(~a4~0)| 1)) (not (<= 1 |old(~a4~0)|))) [2020-10-29 06:44:47,606 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 1030 1046) no Hoare annotation was computed. [2020-10-29 06:44:47,607 INFO L270 CegarLoopResult]: At program point L1044(line 1044) the Hoare annotation is: (let ((.cse0 (<= ~a4~0 1))) (or (<= ~a4~0 0) (not (= 312 |old(~a23~0)|)) (not (= 10 |old(~a25~0)|)) (and (<= 180 ~a23~0) .cse0) (and (<= 141 ~a29~0) .cse0) (and (<= ~a25~0 11) .cse0) (not (<= |old(~a4~0)| 1)) (not (<= |old(~a29~0)| 130)) (and (<= 165 ~a23~0) (<= ~a29~0 130) .cse0) (not (<= 1 |old(~a4~0)|)) (and (= ~a25~0 12) .cse0))) [2020-10-29 06:44:47,607 INFO L274 CegarLoopResult]: For program point L1044-1(line 1044) no Hoare annotation was computed. [2020-10-29 06:44:47,607 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-29 06:44:47,607 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse0 (<= ~a4~0 1))) (or (<= ~a4~0 0) (not (= 312 |old(~a23~0)|)) (not (= 10 |old(~a25~0)|)) (and (<= 180 ~a23~0) .cse0) (and (<= 141 ~a29~0) .cse0) (and (<= ~a25~0 11) .cse0) (not (<= |old(~a4~0)| 1)) (not (<= |old(~a29~0)| 130)) (and (<= 165 ~a23~0) (<= ~a29~0 130) .cse0) (not (<= 1 |old(~a4~0)|)) (and (= ~a25~0 12) .cse0))) [2020-10-29 06:44:47,607 INFO L274 CegarLoopResult]: For program point L1036-3(lines 1030 1046) no Hoare annotation was computed. [2020-10-29 06:44:47,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:44:47 BoogieIcfgContainer [2020-10-29 06:44:47,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:44:47,632 INFO L168 Benchmark]: Toolchain (without parser) took 143830.99 ms. Allocated memory was 153.1 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 125.7 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.3 GB. Max. memory is 8.0 GB. [2020-10-29 06:44:47,633 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 153.1 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:44:47,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1031.61 ms. Allocated memory is still 153.1 MB. Free memory was 125.1 MB in the beginning and 81.0 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2020-10-29 06:44:47,634 INFO L168 Benchmark]: Boogie Preprocessor took 219.78 ms. Allocated memory is still 153.1 MB. Free memory was 81.0 MB in the beginning and 127.5 MB in the end (delta: -46.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:44:47,635 INFO L168 Benchmark]: RCFGBuilder took 2233.25 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 127.5 MB in the beginning and 78.9 MB in the end (delta: 48.6 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. [2020-10-29 06:44:47,635 INFO L168 Benchmark]: TraceAbstraction took 140335.02 ms. Allocated memory was 192.9 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 78.9 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-29 06:44:47,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 153.1 MB. Free memory is still 125.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1031.61 ms. Allocated memory is still 153.1 MB. Free memory was 125.1 MB in the beginning and 81.0 MB in the end (delta: 44.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 219.78 ms. Allocated memory is still 153.1 MB. Free memory was 81.0 MB in the beginning and 127.5 MB in the end (delta: -46.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2233.25 ms. Allocated memory was 153.1 MB in the beginning and 192.9 MB in the end (delta: 39.8 MB). Free memory was 127.5 MB in the beginning and 78.9 MB in the end (delta: 48.6 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 140335.02 ms. Allocated memory was 192.9 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 78.9 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: (((((((((a4 <= 0 || !(312 == \old(a23))) || !(10 == \old(a25))) || (180 <= a23 && a4 <= 1)) || (141 <= a29 && a4 <= 1)) || (a25 <= 11 && a4 <= 1)) || !(\old(a4) <= 1)) || !(\old(a29) <= 130)) || ((165 <= a23 && a29 <= 130) && a4 <= 1)) || !(1 <= \old(a4))) || (a25 == 12 && a4 <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 126.8s, OverallIterations: 18, TraceHistogramMax: 5, AutomataDifference: 68.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 864 SDtfs, 14188 SDslu, 1395 SDs, 0 SdLazy, 25069 SolverSat, 3886 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21163occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 5582 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1740 PreInvPairs, 1986 NumberOfFragments, 430 HoareAnnotationTreeSize, 1740 FomulaSimplifications, 238809 FormulaSimplificationTreeSizeReduction, 4.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 102246 FormulaSimplificationTreeSizeReductionInter, 8.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 50.3s InterpolantComputationTime, 4839 NumberOfCodeBlocks, 4839 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 4821 ConstructedInterpolants, 0 QuantifiedInterpolants, 4042119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 3 PerfectInterpolantSequences, 3415/3930 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...